CBCP Enterprise Blockchain Platforms 5

Question 1

Which enterprise blockchain platform was built by the Linux Foundation and supports multiple programming languages for smart contract development including Go, JavaScript, and Java?

Accepted Answer

Hyperledger Fabric

Answer

Hyperledger Fabric, maintained under the Linux Foundation's Hyperledger umbrella, supports chaincode written in Go, JavaScript (Node.js), and Java.

Question 2

What is the main architectural difference between Hyperledger Fabric's 'execute-order-validate' model and traditional blockchain's 'order-execute' model?

Accepted Answer

Fabric simulates and endorses transactions before ordering, enabling parallel execution and early conflict detection

Answer

Fabric's execute-order-validate model allows peers to simulate transactions in parallel and endorse results before ordering, detecting read-write conflicts early and improving throughput.

Question 3

In the context of enterprise blockchain platforms, what is a 'sidechain'?

Accepted Answer

A separate blockchain that runs parallel to a main chain and is interoperable with it via a two-way peg

Answer

A sidechain is an independent blockchain that operates in parallel to a main chain, connected via a two-way peg that allows assets to move between the chains.

Question 4

What is the purpose of the 'Endorsement Policy' in Hyperledger Fabric?

Accepted Answer

It specifies which organizations' peers must sign a transaction for it to be considered valid

Answer

Endorsement policies in Hyperledger Fabric define which combination of organizations must execute and sign a transaction proposal for it to be accepted as valid.

Question 5

Which enterprise blockchain deployment model allows organizations to use blockchain-as-a-service without managing the underlying infrastructure?

Accepted Answer

Cloud-hosted BaaS (Blockchain as a Service)

Answer

BaaS (Blockchain as a Service) offerings from providers like IBM, Azure, and AWS allow enterprises to deploy blockchain networks without managing servers, networking, or node software.

CBCP - Certified Blockchain Professional Practice Test

CBCP - Certified Blockchain Professional Practice Test

CBCP Enterprise Blockchain Platforms 5